Collapsible drinking straw



FIG. 1 is a perspective view of a collapsible drinking straw showing mynew design;

FIG. 2 is a perspective view thereof, in a collapsed position;

FIG. 3 is a cross-sectional view thereof, the container shown in brokenlines for illustrative purposes only;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for a collapsible drinking straw, as shown.